Use bootstrap default translucent border color

[KorvinSzanto]

See #364

[JohntheFish]

Is there a css variable for this, rather than hard coding a rgb color into the SASS?

[KorvinSzanto]

Yes, these variables are used to set css variables like: --bs-border-color-translucent
https://getbootstrap.com/docs/5.2/customize/css-variables/

[JohntheFish]

Thanks for clarifying. I was looking at it the other (wrong) way round.

[aembler]

These defaults have been chosen as part of the original version 9 design process. If we want to have a discussion about Concrete's design more broadly there's probably a better forum for that.